About YAML Beautifier

Beautify and format your YAML documents instantly with our free online YAML beautifier. Clean up messy YAML files with proper indentation, consistent spacing, and readable structure. Perfect for developers working with Docker Compose, Kubernetes manifests, GitHub Actions, Ansible playbooks, and CI/CD configurations. All processing happens client-side — your data never leaves your device.

Features

Pure Client-Side: No data sent to any server. Your YAML stays private.
Configurable Indentation: Choose 2, 4, or 8 spaces for indentation.
Line Width Control: Optional line width wrapping for long values.
Instant Formatting: Real-time beautification with one click.
One-Click Actions: Copy formatted YAML to clipboard or download as a .yml file.
YAML 1.2 Support: Handles anchors, aliases, and all standard YAML types.

How to Use

Paste your YAML into the input area.
Select your preferred indentation and line width.
Click Beautify YAML.
Copy or download the formatted result.

Common Use Cases

CI/CD Configs: Format GitHub Actions, GitLab CI, or Docker Compose YAML.
Kubernetes: Clean up K8s manifest YAML for better readability.
Ansible: Format playbook YAML to maintain consistency.
API Specs: Format OpenAPI/Swagger YAML definitions.

FAQ

Is this tool free?

Yes, 100% free. No sign-up, no limits.

Is my data private?

Absolutely. All processing happens in your browser. We never see your data.

What YAML versions are supported?

We support YAML 1.2 specification, including anchors, aliases, tags, and all standard data types.